diff --git a/net/qrtr/fifo.c b/net/qrtr/fifo.c
index 8947363528ec..d5ccd5d808d5 100644
--- a/net/qrtr/fifo.c
+++ b/net/qrtr/fifo.c
@@ -90,6 +90,9 @@ static void fifo_rx_peak(struct fifo_pipe *pipe,
 	if (tail >= pipe->length)
 		tail -= pipe->length;
 
+	if (WARN_ON_ONCE(tail > pipe->length))
+		return;
+
 	len = min_t(size_t, count, pipe->length - tail);
 	if (len)
 		memcpy_fromio(data, pipe->fifo + tail, len);